Leaders from 30 countries gather today to remember the victims of the Holocaust on the 60th anniversary of the liberation of the Nazis' Auschwitz death camp by Soviet troops. Auschwitz has come to symbolize the horror of the Holocaust. An estimated 1.5 million people were murdered there -- most of them systematically in gas chambers. Nearly all the victims were Jews. Others included Gypsies, Poles, Catholics, homosexuals and Soviet POWs. The photo was taken on October 1st 2004 during a study-mission to Poland.